This is the third time Caitlin has been "replaced".
She skated with Daniyel Cohen, who replaced her with Molly Aaron.
She skated with John Coughlin, who replaced her with Caydee Denney.
She never really skated with Josh Regan because of his injury, but apparently she's been replaced again.

Yankowskas and Cohen split after their Novice silver medal at 2007 Nationals. Yankowskas moved to Colorado Springs and eventually was paired with Coughlin - they placed 6th in their Senior debut at 2008 Nationals. Cohen stayed in Massachusetts and skated one season with Arielle Trujillo (10th in Junior Pairs at 2008 Nationals), before moving to Colorado Springs to skate with Molly Aaron for 3 seasons.